My 2004 Record rear shifer is suddenly giving me grief. The chain is stuck on the 11 cog and no amount of pressing on either lever gets it to move. It happened this past weekend. Yesterday on the repair stand I got it to work, but I can't reconstruct what I did. I just messed with it.
Today it happened again while I was just shifting through the gears on the repair stand. Normally, the thumb lever shifts with a short amount of downward movement, but just before it got permanently stuck in the 11 cog it didn't shift for each gear until just near the end of its downward movement.
Is there an obvious fix I can do before I tear into the shifter? It doesn't have a huge amount of use, perhaps 2500 miles.
My 2004 Record rear shifer is suddenly giving me grief. The chain is stuck on the 11 cog and no amount of pressing on either lever gets it to move. It happened this past weekend. Yesterday on the repair stand I got it to work, but I can't reconstruct what I did. I just messed with it.
Today it happened again while I was just shifting through the gears on the repair stand. Normally, the thumb lever shifts with a short amount of downward movement, but just before it got permanently stuck in the 11 cog it didn't shift for each gear until just near the end of its downward movement.
Is there an obvious fix I can do before I tear into the shifter? It doesn't have a huge amount of use, perhaps 2500 miles.
Uhm. Is the rear derailleur moving? Is the cable? If the cable isn't moving, it's not broken or disengaged at the shifter, or anything else obvious, then the problem must be in the shifter itself. Be sure you know what you're doing if you open that up, I hear that lots of little bits fall and jump out which you need to not lose 🙂
My 2004 Record rear shifer is suddenly giving me grief. The chain is stuck on the 11 cog and no amount of pressing on either lever gets it to move. It happened this past weekend. Yesterday on the repair stand I got it to work, but I can't reconstruct what I did. I just messed with it.
Today it happened again while I was just shifting through the gears on the repair stand. Normally, the thumb lever shifts with a short amount of downward movement, but just before it got permanently stuck in the 11 cog it didn't shift for each gear until just near the end of its downward movement.
Is there an obvious fix I can do before I tear into the shifter? It doesn't have a huge amount of use, perhaps 2500 miles.
Uhm. Is the rear derailleur moving? Is the cable? If the cable isn't moving, it's not broken or disengaged at the shifter, or anything else obvious, then the problem must be in the shifter itself. Be sure you know what you're doing if you open that up, I hear that lots of little bits fall and jump out which you need to not lose 🙂
Jasper
The derailer moves fine if I manually push it and the cables are OK too. The problem is in the lever for sure.
My 2004 Record rear shifer is suddenly giving me grief. The chain is stuck on the 11 cog and no amount of pressing on either lever gets it to move. It happened this past weekend. Yesterday on the repair stand I got it to work, but I can't reconstruct what I did. I just messed with it.
Today it happened again while I was just shifting through the gears on the repair stand. Normally, the thumb lever shifts with a short amount of downward movement, but just before it got permanently stuck in the 11 cog it didn't shift for each gear until just near the end of its downward movement.
Is there an obvious fix I can do before I tear into the shifter? It doesn't have a huge amount of use, perhaps 2500 miles.
Thanks, Wayne
Try pulling up on the thumb button. On my Veloces, if you shift to the small cog and then press down on the thumb button again, it stays down about a quarter of a click and locks out the movement of both levers. I've gotten in the habit of pulling the button back up manually when I upshift to avoid any problems (not that I'm in the small cog all that often anyway).
Today it happened again while I was just shifting through the gears on the repair stand. Normally, the thumb lever shifts with a short amount of downward movement, but just before it got permanently stuck in the 11 cog it didn't shift for each gear until just near the end of its downward movement.
every ergo i've ever had has had a problem with the thumb lever. i think i just generate a lot more corrosive sweat than campy ever dreamed a human could, and it falls down into the pivot of the thumb lever and gunks it up (and rusts it if i don't get in there with oil often enough).
if that's your problem with that lever, i lay the bike down and go at the pivot with wd-40, a-workin' and a-squirtin' until it moves freely. then i hit it with some oil to delay the next time i'll have to do that. while you're there, slime up the brake QR. they have a bad tendency to get corroded in place too.
ergos can also get jammed when both thumb and finger levers are engaged simultaneously. if the thumb lever is getting stuck due to gunkiness, maybe you're getting "ergolock".
Try pulling up on the thumb button. On my Veloces, if you shift to the small cog and then press down on the thumb button again, it stays down about a quarter of a click and locks out the movement of both levers. I've gotten in the habit of pulling the button back up manually when I upshift to avoid any problems (not that I'm in the small cog all that often anyway).
Good luck!
-HW
Hank,
Yes, this is exactly what is happening. Thanks for the insight. But it never used to do this, so maybe as another poster suggested it needs some lubricant. I'll mess with it tomorrow.
Today it happened again while I was just shifting through the gears on the repair stand. Normally, the thumb lever shifts with a short amount of downward movement, but just before it got permanently stuck in the 11 cog it didn't shift for each gear until just near the end of its downward movement.
every ergo i've ever had has had a problem with the thumb lever. i think i just generate a lot more corrosive sweat than campy ever dreamed a human could, and it falls down into the pivot of the thumb lever and gunks it up (and rusts it if i don't get in there with oil often enough).
if that's your problem with that lever, i lay the bike down and go at the pivot with wd-40, a-workin' and a-squirtin' until it moves freely. then i hit it with some oil to delay the next time i'll have to do that. while you're there, slime up the brake QR. they have a bad tendency to get corroded in place too.
ergos can also get jammed when both thumb and finger levers are engaged simultaneously. if the thumb lever is getting stuck due to gunkiness, maybe you're getting "ergolock".
I'll definitely lubricate the thumb lever as well as the QR. The thumb lever is staying down which is locking both levers.
My 2004 Record rear shifer is suddenly giving me grief. The chain is stuck on the 11 cog and no amount of pressing on either lever gets it to move. It happened this past weekend. Yesterday on the repair stand I got it to work, but I can't reconstruct what I did. I just messed with it.
Today it happened again while I was just shifting through the gears on the repair stand. Normally, the thumb lever shifts with a short amount of downward movement, but just before it got permanently stuck in the 11 cog it didn't shift for each gear until just near the end of its downward movement.
Is there an obvious fix I can do before I tear into the shifter? It doesn't have a huge amount of use, perhaps 2500 miles.
Thanks, Wayne
I would ensure that the cable moves smoothly thru the housing thruout, the under BB guilde is clean, lubed and the inner wire is not fraying at the lever. Also make sure the thumb button is not fouled by the bar tape or the brake hood.
The thumb lever pivot had some corrosion on it, which prevented it from springing back up to the neutral position, so its ratchet engagement tooth was not releasing from the ratcheting wheel. This prevented the ratcheting wheel from rotating when the up-shift lever was pressed.
WD-40, a toothbrush, and manual manipulation got the thumb lever springing back freely. I then greased it.
Not Campy. Look for instructions (Branford will sell you some for $5; it's also in Zinn's book). There are lots of little pieces in there, sure. However, most of them form sub-assemblies, and they do NOT fall and jump out. When you do a re-build, you will get the impression that you are really only dealing with about 6-7 parts.
Jasper Janssen said:
Uhm. Is the rear derailleur moving? Is the cable? If the cable isn't moving, it's not broken or disengaged at the shifter, or anything else obvious, then the problem must be in the shifter itself. Be sure you know what you're doing if you open that up, I hear that lots of little bits fall and jump out which you need to not lose 🙂
